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//! HIR for type aliases (i.e. the `type` keyword).
use std::sync::Arc;
use ra_syntax::ast::NameOwner;
use crate::{
db::{AstDatabase, DefDatabase},
name::{AsName, Name},
type_ref::TypeRef,
HasSource, TypeAlias,
};
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct TypeAliasData {
pub(crate) name: Name,
pub(crate) type_ref: Option<TypeRef>,
}
impl TypeAliasData {
pub(crate) fn type_alias_data_query(
db: &(impl DefDatabase + AstDatabase),
typ: TypeAlias,
) -> Arc<TypeAliasData> {
let node = typ.source(db).ast;
let name = node.name().map_or_else(Name::missing, |n| n.as_name());
let type_ref = node.type_ref().map(TypeRef::from_ast);
Arc::new(TypeAliasData { name, type_ref })
}
}
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